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J Korean Soc Spine Surg. 1999 Dec;6(3):415-421. Korean. Original Article.
Chung YK , Kim SW , Kim BS , Lee EJ , Choi SJ , Chang JD .
Department of Orthopaedic Surgery, Hallym University, Seoul, Korea. KSW41979@unitel.co.kr
Abstract

STUDY DESIGN: A retrospective study was designed to evaluate the radiographic diagnostic method to detect any abnormal findings and differentiate stable burst fractures with compression fractures at thoracolumbar spine. OBJECTIVES: To evaluate diagnostic sensitivity of radiographic analysis and confirm the effectiveness of the radiographic diagnostic methods to differentiate stable burst fractures with pure compression fractures. SUMMARY OF BACKGROUND DATA: A data showed that the diagnostic sensitivity using radiographic analysis was 83%. The greater sensitivity was obtained at high posterior superior vertebral angle and PSVA/PIVA > 1.3. MATERIALS AND METHODS: Thirty-one patients with thoracolumbar spine fractures were evaluate to differentiate stable burst fractures with pure compression fractures. All patients were taken X-ray and CT. The PSVA(Posterior superior vertebral angle), PIVA(Posterior inferior vertebral angle), PSVA/PIVA were checked using lateral plain radiographs during follow-up period, and the final data was analysed using radiological & statistical methods. RESULTS: Middle column failure of stable burst fractures was greatly observed at high PSVA(especially >100degree) and high PSVA/PIVA ratio(> 1.3). CONCLUSION: The radiographic analysis using PSVA(Posterior superior vertebral angle), PIVA(Posterior inferior vertebral angle), PSVA/PIVA might be the one of useful methods to differentiate stable burst fractures with pure compression fractures at thoracolumbar spine during follow-up period.

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